When I specify -Wall, certain strftime options generate spurious warning 
messages.
Specifically, %D and %y generate the following warnings:
   warning: `%y' yields only last 2 digits of year
   warning: `%D' yields only last 2 digits of year

This is the documented behaviour of these options so the warning seems a little
out of place.  Equivalently, you should warn me that
   warning: sin() does not generate the cosine.

These warnings should be removed or replaced with
   warning: GNU expects you to display four digit years

-- 
           Summary: strftime options generate spurious warnings
           Product: gcc
           Version: 3.2
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: cmattair at pdq dot net
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23267

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